Screw number to decimal inches
Type a value in screw to get it in in instantly.
0.19in
That's about the same as a door-hinge screw (#10).
Convert the other way: in to screw
What it means
How thick is that screw?
Major (outside) thread diameter. The number gives the thickness only; length and thread pitch are separate (8-32 × 1/2" is a #8, 32 threads per inch, half an inch long).
The math
How to convert screw to in
Diameter (in) = 0.060 + 0.013 × number; for #00 use −1, #000 −2. Millimeters = inches × 25.4.
Example: #10 screw = 0.19 in.
Every unit
That screw in every unit
Tables
screw to in conversion table
| screw | in |
|---|---|
| #0 screw | 0.06 in |
| #1 screw | 0.073 in |
| #2 screw | 0.086 in |
| #3 screw | 0.099 in |
| #4 screw | 0.112 in |
| #5 screw | 0.125 in |
| #6 screw | 0.138 in |
| #8 screw | 0.164 in |
| #10 screw | 0.19 in |
| #12 screw | 0.216 in |
| #14 screw | 0.242 in |
| #16 screw | 0.268 in |
| #18 screw | 0.294 in |
| #20 screw | 0.32 in |
| #24 screw | 0.372 in |
in to screw conversion table
| in | screw |
|---|---|
| 0.06 in | #0 screw |
| 0.073 in | #1 screw |
| 0.086 in | #2 screw |
| 0.099 in | #3 screw |
| 0.112 in | #4 screw |
| 0.125 in | #5 screw |
| 0.138 in | #6 screw |
| 0.164 in | #8 screw |
| 0.19 in | #10 screw |
| 0.216 in | #12 screw |
| 0.242 in | #14 screw |
| 0.268 in | #16 screw |
| 0.294 in | #18 screw |
| 0.32 in | #20 screw |
| 0.372 in | #24 screw |
Quick answers
Quick answers
- How many in is #1 screw?
- #1 screw is 0.073 in.
- How many in is #10 screw?
- #10 screw is 0.19 in.
The units
About these units
Screw number (screw)
US machine and wood screw numbers, #0000 to #24.
Decimal inches (in)
The major diameter in inches.
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